List some of the common wastes produced in mining operation and mention how these can be reused.

List four different excretory wastes produced in human beings.

List the two methodologies which were involved in human genome project . Mention how they were used. Explain YAC and mention what was it used for.

The three microbes are listed below. Name the product produced by each one of them and mention their use. (a) Aspergillus niger (b) Trichoderma polysporum (c) Monascus purpureus

How can the pitch of sound produced in a piano be changed ?

Where do the lymphocytes produced by the lymphoid organ mentioned above migrate and how do they affect immunity?

In a bacterial culture, some of the colonies produced blue colour in the presence of a chromogenic substrate and some did not due to the presence or absence of an insert (rDNA) in the coding sequence of beta - galactosidase. (a) Mention the mechanism and the steps involved in this experiment. (b) How is it advantageous over simultaneous plating on two plates having different antibiotics?

List out some common features in cat, rat and bat.

How is golden rice produced by genetic engineering. Mention its significance.

Power P is to be delivered to a device via transmission cables having resistance R_(c) . If V is the voltage across R and I the current through it , find the power wasted and how can it be reduced.

Given below is a representation of a kind of pollution. Study the same and answer the questions that follow : (i) Name the kind of pollution. (ii) List any three common sources of this pollution (iii) Mention three harmful effects of this pollution on human health. (iv) Explain the term 'Pollutant'. (v) Name two soil pollutants.